Only crate and playpen access?

Is it a thing to only give your puppy crate and playpen access most of the time?

Currently he goes between crate and main floor access (with closed bedroom doors). But with Christmas coming up, and just the stress in general of keeping an eye on him all the time … I’m wondering if we can get a playpen for him and transfer him into that once he’s up from his naps. He also gets to spend time outside a lot because he LOVES outside.

He’s 9 weeks old now. Would it be feasible to do this kind of setup for a month or two? Or would so much playpen time be frowned upon?

I’m looking for different low-maintenance options because it’s been a LOT to manage.

Also, I want him to learn to go to the door if he has to potty… so now sure how that would work if he was in his playpen. While in his crate he is fully crate trained and whines to go potty. Free roaming he def is not potty trained. Would he whine to go out if he were in a playpen??